Consolidated Balance Sheets - USD ($)	Dec. 31, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 1,011,472	$ 3,391,528
Accounts receivable, net of allowances of $354,542 and $260,676, respectively	4,168,015	5,003,972
Prepaid expenses and other current assets	1,244,494	1,245,085
Inventory	0	6,181
Total current assets	6,423,981	9,646,766
Property and equipment, net of accumulated depreciation of $17,926,959 and $18,580,547, respectively	636,112	1,174,942
Deferred tax assets, net	590,977	577,735
Software development costs, net	279,414	547,558
Other assets	992,760	973,949
Goodwill	4,150,339	4,150,339
Other intangible assets, net	141,631	209,456
Total assets	13,215,214	17,280,745
Current liabilities:
Accounts payable	1,092,864	419,877
Accrued expenses	4,376,235	4,471,010
Short-term loan, net of debt issuance costs and discounts	370,151	0
Deferred revenue, net	11,760,327	15,236,123
Total current liabilities	17,599,577	20,127,010
Liabilities, Noncurrent [Abstract]
Other long-term liabilities	1,154,512	1,170,844
Deferred tax liabilities, net	85,559	254,776
Deferred revenue, net	6,600,363	8,430,692
Total liabilities	25,440,011	29,983,322
Commitments and contingencies (Note 12)
Series A redeemable convertible preferred stock, $.001 par value, 2,000,000 shares authorized, 900,000 shares issued and outstanding, redemption value of $9,000,000	9,000,000	9,000,000
Stockholders' equity:
Common stock - $.001 par value, 100,000,000 shares authorized, 60,091,560 and 59,482,989 shares issued, respectively and 44,563,490 and 43,954,919 shares outstanding, respectively	60,090	59,483
Additional paid-in capital	168,637,157	169,091,255
Accumulated deficit	(130,930,284)	(131,982,685)
Common stock held in treasury, at cost (15,528,070 and 15,528,070 shares, respectively)	(57,032,917)	(57,032,917)
Accumulated other comprehensive loss, net	(1,958,843)	(1,837,713)
Total stockholders' deficit	(21,224,797)	(21,702,577)
Total liabilities and stockholders' deficit	$ 13,215,214	$ 17,280,745